CN209805947U

CN209805947U - camera protective cover

Info

Publication number: CN209805947U
Application number: CN201921080129.2U
Authority: CN
Inventors: 李新康
Original assignee: Beijing City Police Tatsu Electrical And Mechanical Equipment Research Institute Co Ltd
Current assignee: Beijing City Police Tatsu Electrical And Mechanical Equipment Research Institute Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2019-12-17
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a camera protective cover, wherein a universal ball shaft is a fixed pipe and a universal ball head which are connected with each other, and the end surface of the fixed pipe is fixed on the spherical surface of the universal ball head; the front spherical shaft cover is provided with a hemispherical first accommodating cavity, the rear spherical shaft cover is provided with a hemispherical second accommodating cavity, the front spherical shaft cover and the rear spherical shaft cover are embraced on the spherical surface of the universal ball head, the universal ball head is positioned in the spherical accommodating cavity formed by the first accommodating cavity and the second accommodating cavity, and the front spherical shaft cover and the rear spherical shaft cover are detachably connected; the outer spherical surface of the front spherical shaft cover is fixedly provided with a rear seat, the plane where the rear seat is located is parallel to the first open end surface of the accommodating cavity, the rear seat is detachably connected with a cover cylinder, and the front end of the cover cylinder is detachably connected with a front plastic ring. The utility model aims at solving the problem of installation and debugging of the monitoring picture slope of the hoisting camera protective cover. The technical effects are as follows: the horizontal monitoring is carried out for 360 degrees, no dead angle exists in positioning, no cable is pulled, no damage is caused to the cable, and the picture levelness of the monitor is convenient to adjust.

Description

Camera protective cover

Technical Field

The embodiment of the utility model provides a relate to supervisory equipment technical field, concretely relates to camera protection casing.

Background

At present, the development of camera protection covers at home and abroad is mainly concentrated on seat installation, the camera protection covers capable of being directly hoisted are rare, the best mode of connecting the camera protection covers with a subway suspender at present is only that the joint connection similar to the elbow joint form of a human body is popularized, and the main problems of the camera protection covers connected by joints at present are as follows:

(1) When the camera is installed on the standing ladder, the 2 rotary joints covered by the cable need to be disassembled and then reassembled, and the high-altitude operation is quite troublesome;

(2) because M8 fastening nuts at the center of the circular tube flange need to be supported by 4 cross beams, cables need to penetrate through the beam to enter a camera, the phenomena of wire coiling, wire pulling and wire damage frequently occur when the protective cover rotates horizontally, and the construction electric shock risk is high;

(3) the appearance is large, and the flange connection at the joint of the hanger rod is more bloated particularly;

(4) Due to the dead weight of the suspender and errors of connection and installation of the upper suspender and the lower suspender, the suspender is often not completely vertical to the ground, and finally, the two wings of the camera in the protective cover are not as high as that of the airplane when the airplane turns, the picture of the monitor naturally inclines by an angle of 2-8 degrees, and the problem that the gasket is added on one side of the camera in the protective cover when the angle needs to be found back is solved;

(5) when the universal ball shaft is used for adjusting the angle, the plastic spraying layer on the surface is easy to rub and fall off, the friction coefficient is reduced after the plastic spraying layer falls off, and the universal ball shaft clamp is easy to slip and also leads the protective cover to automatically droop due to dead weight and wind disturbance.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a camera protection casing to solve among the prior art installation and debugging difficult problem, how and simplify the step of camera installation threading on the ladder and improve the security and the problem of installation maintenance that the monitoring picture slope that hoist and mount camera protection casing ubiquitous brought.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

According to a first aspect of an embodiment of the present invention, a camera shield includes a front ball axle cover, a rear ball axle cover, a universal ball axle, a rear seat, a cover cylinder, and a front plastic ring; the universal ball shaft is a fixed pipe and a universal ball head which are connected with each other, and the end surface of the fixed pipe is fixed on the spherical surface of the universal ball head; the front spherical shaft cover is provided with a hemispherical first accommodating cavity, the rear spherical shaft cover is provided with a hemispherical second accommodating cavity, the front spherical shaft cover and the rear spherical shaft cover are embraced on the spherical surface of the universal ball head, the universal ball head is positioned in the spherical accommodating cavity formed by the first accommodating cavity and the second accommodating cavity, and the front spherical shaft cover and the rear spherical shaft cover are detachably connected; the outer spherical surface of the front spherical shaft cover is fixedly provided with a rear seat, the plane where the rear seat is located is parallel to the first open end surface of the accommodating cavity, the rear seat is detachably connected with a cover cylinder, and the front end of the cover cylinder is detachably connected with a front plastic ring.

further, still include central line pipe, central line pipe runs through the central point that sets up at the back seat and puts, and the inside lumen of central line pipe passes the first chamber that holds the most lower extreme and the lumen intercommunication of fixed pipe.

further, still include the mounting panel, the mounting panel is the rectangular plate, and a width edge of mounting panel can be dismantled and be connected on the back seat, and the mounting panel is located the downside of central spool, is provided with the pterygoid lamina respectively on two length edges of mounting panel, and cover section of thick bamboo is inside to be provided with two inserting grooves, and two pterygoid laminas on the mounting panel are pegged graft respectively in two inserting grooves.

Furthermore, a fixed slotted hole is formed in the mounting plate, the fixed slotted hole is a long-strip hole, and the extending direction of the fixed slotted hole is parallel to the axis of the cover cylinder.

Furthermore, the universal ball head fixing device further comprises two ball shaft cover fastening screws, the two ball shaft cover fastening screws respectively penetrate through the rear ball shaft cover to fasten the rear ball shaft cover to the front ball shaft cover, the two ball shaft cover fastening screws are symmetrical about the axis of the universal ball shaft, and the plane where the axes of the two ball shaft cover fastening screws are located is located on the horizontal central plane of the universal ball head.

Further, still include preceding sealing washer, preceding plastic ring and cover are provided with preceding sealing washer between the preceding terminal surface of a section of thick bamboo.

Furthermore, the front end of the cover cylinder is provided with a circular plastic ring fixing plate, four gourd holes are uniformly formed in the plastic ring fixing plate in the circumferential direction, and the four plastic ring fixing bolts penetrate through the four gourd holes respectively to fasten the front plastic ring on the cover cylinder.

Further, still include the back sealing washer, be provided with the back sealing washer between cover section of thick bamboo and the back seat.

Furthermore, the shield cover is an arc plate and is arranged above the upper semicircular surface of the cover cylinder, and the shield cover is fixedly connected with the cover cylinder.

further, the adjusting range of the pitching included angle between the axis of the cover cylinder and the axis of the fixed pipe is 80-135 degrees, and the adjusting range of the horizontal deflection angle of the horizontal symmetrical plane of the cover cylinder is-11 degrees.

The utility model has the advantages of as follows:

(1) The damping piece similar to a periosteum is added between the universal ball shaft and the clamping piece, the problems of plastic layer falling, ball shaft slipping, automatic falling of the protective cover and the like are thoroughly solved, no literature report is seen in the whole camera protective cover industry so far, the protective cover belongs to original creation, the industry blank in the whole protective cover field is filled, and the use purposes of horizontal monitoring of 360-degree positioning without dead angle, vertical monitoring of 55 degrees and arbitrary angle adjustment of the positive and negative 11-degree ranges of two wings are realized;

(2) The cable head is directly inserted into the universal ball shaft hole (after leaving factory, the included angle between the protective cover cylinder and the universal ball shaft is adjusted to be maximum, and the protective cover cylinder and the universal ball shaft are fastened and positioned) to complete the cable penetrating task, so that the monitoring cable head can be easily and visually inserted into the protective cover along the inner wall of the universal ball shaft; the problem that the conventional cylindrical camera protective cover is troublesome and time-consuming in assembling and threading;

(3) The inner tube cavity of the central line tube penetrates through the lowest end of the first accommodating cavity and is communicated with the tube cavity of the fixed tube, the cable vertically penetrates through the central tube downwards from the universal ball shaft, and the camera protective cover can rotate within 360 degrees horizontally and does not have dangerous phenomena such as bracing wires, line damage and the like on the cable;

(4) The universal ball shaft connection mode realizes that the camera protective cover can freely rotate and position the height of two wings within the range of plus or minus 11 degrees, and effectively solves the problem of the inclination of a monitoring picture.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

fig. 1 is a perspective view of a camera shield according to some embodiments of the present invention.

Fig. 2 is a front view of a camera shield according to some embodiments of the present invention.

Fig. 3 is an oblique upward view of a camera shield as provided in fig. 2.

In the figure: 1. the ball bearing comprises a front ball shaft cover, a rear ball shaft cover, a universal ball shaft, a ball shaft cover fastening screw, a rear seat, a mounting plate, a fixing groove hole, a cover cylinder, a front plastic ring, a front sealing ring, a plastic ring fixing screw, a gourd-shaped hole, a retaining cover, a rear sealing ring, a central spool, a universal ball shaft, a rear ball shaft cover fastening screw, a rear seat, a mounting plate, a fixing groove.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the camera shield in this embodiment includes a front ball cover 1, a rear ball cover 2, a universal ball shaft 3, a rear seat 5, a shield cylinder 8 and a front plastic ring 9; the universal ball shaft 3 is a fixed pipe and a universal ball head which are connected with each other, the end face of the fixed pipe is fixed on the spherical surface of the universal ball head, an accommodating cavity for inserting a circuit is formed in the universal ball head, and a pipe cavity in the fixed pipe is communicated with the accommodating cavity in the universal ball head; the front ball shaft cover 1 is provided with a hemispherical first accommodating cavity, the rear ball shaft cover 2 is provided with a hemispherical second accommodating cavity, the front ball shaft cover 1 and the rear ball shaft cover 2 are embraced on the spherical surface of a universal ball head, the universal ball head is positioned in the spherical accommodating cavity formed by the first accommodating cavity and the second accommodating cavity, a fixing pipe penetrates out of the accommodating cavity formed by the first accommodating cavity and the second accommodating cavity, and the front ball shaft cover 1 and the rear ball shaft cover 2 are detachably connected through bolt connection; a rear seat 5 is fixed on the outer spherical surface of the front spherical shaft cover 1, the rear seat 5 is an aluminum casting, the plane where the rear seat 5 is located is parallel to the open end surface of the first accommodating cavity, the rear seat 5 is detachably connected with a cover cylinder 8 through bolt connection, the cover cylinder 8 is of a cylindrical structure, the front end of the cover cylinder 8 is detachably connected with a front plastic ring 9 through bolt connection, the front plastic ring 9 is of a circular rotary body, and an inward annular groove is arranged on the front end surface of the front plastic ring 9, for example, the IP protection grade in the embodiment is IP65, the cover cylinder 8 is made of medium-temperature extruded aluminum profiles, and the universal spherical shaft 3 is made of Q235 structural steel through vehicle-forming; and a white sub-fine sand-grained polyester anti-corrosion spraying layer is sprayed on the outer side of the whole protective cover.

the technical effect that this embodiment reaches does: the damping piece similar to a periosteum is added between the universal ball shaft 3 and the two clamping pieces of the front ball shaft cover 1 and the rear ball shaft cover 2, so that the problems of plastic layer falling, ball shaft slipping, automatic falling of the protective cover and the like are thoroughly solved, the problem that the whole camera protective cover industry has no literature report so far belongs to original creation, the industry blank in the whole protective cover field is filled, and the use purposes that 360-degree positioning of horizontal monitoring is free of dead angle, 55-degree vertical monitoring is realized, and the angle can be adjusted randomly within the range of plus or minus 11 degrees of two wings are realized; the camera protective cover can rotate horizontally within 360 degrees, and the dangerous phenomena of bracing wires, wire damage and the like can not occur to cables.

example 2

as shown in fig. 1 and fig. 2, the camera shield according to the present embodiment includes all the technical features of embodiment 1, and in addition, further includes a central line tube 15, the central line tube 15 is disposed at the central position of the rear seat 5 in a penetrating manner, a tube cavity inside the central line tube 15 passes through the lowest end of the first accommodating cavity to communicate with a tube cavity of the fixed tube, and specifically, a cavity communicating with the fixed tube is disposed in the universal ball head; the mounting structure is characterized by further comprising a mounting plate 6, wherein the mounting plate 6 is a rectangular plate, one width edge of the mounting plate 6 is detachably connected to the rear seat 5, the mounting plate 6 is located on the lower side of the central line pipe 15, wing plates are respectively arranged on two length edges of the mounting plate 6 and are located in the same plane, the two wing plates respectively extend outwards from the length edges of the mounting plate 6, two insertion grooves are formed in the cover cylinder 8 and are strip-shaped grooves, and the two wing plates on the mounting plate 6 are respectively inserted into the two insertion grooves; the mounting plate 6 is provided with a fixing slotted hole 7, the fixing slotted hole 7 is used for mounting and adjusting the position of the camera, the fixing slotted hole 7 is a long-strip hole, the extending direction of the fixing slotted hole 7 is parallel to the axis of the cover cylinder 8, and the mounting screw of the camera can adopt a nickel-plated cross special nail.

In a specific embodiment, the universal ball joint further comprises two ball joint cover fastening screws 4, the two ball joint cover fastening screws 4 respectively penetrate through the rear ball joint cover 2 to fasten the rear ball joint cover fastening screws to the front ball joint cover 1, the two ball joint cover fastening screws 4 are symmetrical about the axis of the universal ball joint 3, and the plane where the axes of the two ball joint cover fastening screws 4 are located is located on the horizontal center plane of the universal ball joint; the front sealing ring 10 is an annular sealing ring made of rubber, and the front sealing ring 10 is arranged between the front plastic ring 9 and the front end face of the cover cylinder 8; the front plastic ring fixing device comprises a cover cylinder 8 and is characterized by further comprising four plastic ring fixing bolts 11, wherein a circular plastic ring fixing plate is arranged at the front end of the cover cylinder 8, four gourd holes 12 are uniformly formed in the plastic ring fixing plate in the circumferential direction, and the four plastic ring fixing bolts 11 respectively penetrate through the four gourd holes 12 to fasten the front plastic ring 9 on the cover cylinder 8; the rear sealing ring 14 is an annular sealing ring made of rubber, and the rear sealing ring 14 is arranged between the cover cylinder 8 and the rear seat 5.

In the embodiment, the camera cover cylinder 8 is a standard protective body which is formed by connecting a camera mounting plate 6 made of an aluminum alloy cylinder in a cylindrical appearance, a die-cast aluminum piece and a structural steel spherical adjustable joint through screws, the camera cover cylinder 8 can rotate 360 degrees horizontally and can be adjusted in a pitching and elevation angle, the camera cover cylinder has the characteristic of an angle adjusting function of forming an included angle between the camera and a horizontal plane, and meanwhile, the position of the camera can be adjusted forwards and backwards on the mounting plate 6.

The beneficial effects in this embodiment are: the high-altitude threading operation does not need to disassemble any device on the camera protective cover, the cable head is directly inserted into the hole of the universal ball shaft 3 (after the protective cover barrel 8 and the universal ball shaft 3 are adjusted to the maximum included angle after leaving factory and are fastened and positioned), the cable threading task is completed, the monitoring cable head can be easily and visually inserted into the protective cover along the inner wall of the universal ball shaft 3, and the problems that the assembly threading of the existing barrel-type camera protective cover needs to be disassembled and assembled, and the time is wasted are solved; the adjustability of the installation position of the camera is realized through the strip-shaped fixed slotted hole 7 arranged on the installation plate 6; by providing the front seal ring 10 and the rear seal ring 14, the waterproof performance of the cover cylinder 8 is increased.

Example 3

As shown in fig. 1 to 3, the camera shield according to the present embodiment includes all the technical features of embodiment 2, and in addition, further includes a blocking cover 13, where the blocking cover 13 is an arc plate, the blocking cover 13 is disposed above the upper semicircular surface of the shield cylinder 8, and the blocking cover 13 is fixedly connected to the shield cylinder 8; the adjusting range of the pitching included angle between the axis of the cover cylinder 8 and the axis of the fixed tube is between 80 degrees and 135 degrees, the adjusting range of the horizontal deflection angle of the horizontal symmetrical surface of the cover cylinder 8 is between-11 degrees and 11 degrees, the adjusting range of the pitching included angle and the adjusting range of the horizontal deflection angle are limited by the limit between the fixed tube on the universal ball shaft 3 and the front ball shaft cover 1 and the rear ball shaft cover 2, when the cover cylinder 8 rotates upwards, the front ball shaft cover 1 is abutted against the outer side wall of the fixed tube at the limit position, so that the elevation angle of the cover cylinder 8 is limited to be 10 degrees upwards horizontally, when the cover cylinder 8 rotates downwards, the rear ball shaft cover 2 is abutted against the outer side wall of the fixed tube at the limit position, so that the maximum depression angle of the cover cylinder 8 is 45 degrees downwards horizontally, when the cover cylinder 8 rotates around the axis, the fixed tube, the front ball shaft cover 1 and the rear ball shaft cover 2 simultaneously limit the angle range to rotate on the maximum anticlockwise towards the horizontal plane of the cover cylinder 8, and the mantle 8 is rotated down to the horizontal plane by 11 deg. clockwise at maximum.

The beneficial effects in this embodiment are: the universal ball shaft 3 connection mode realizes the free rotary positioning of the camera protective cover within the range of plus or minus 11 degrees in height of two wings, fully meets the angle adjustment requirement within the range of plus or minus 8 degrees, leaves a margin, does not need to disassemble the protective cover, and thoroughly solves the problem that the picture inclination angle of a monitor is 0-8 degrees.

The step of disassembling the protective cover in this embodiment is:

(1) Two M4 anti-drop screws at the rear part of the cover body are unscrewed (without completely separating from the rear seat 5), so that the cover cylinder 8 and the rear seat 5 can be partially and completely separated, and the camera is installed, debugged and maintained;

(2) Hand-held cross instrument is in the same direction as 4M 3 of unscrewing in the cover section of thick bamboo 8 and is moulded a circle set screw (need not to break away from completely), and the cover section of thick bamboo 8 is moulded before and 9 to mould circle before the both hands are gripped respectively to 2 degrees counter-clockwise turning can mould preceding 9 and cover section of thick bamboos 8 complete separations, thereby mould the installation of adapter and glass etc. in the circle 9 before carrying out and maintain.

the installation process of the accessories and the whole machine in the cover of the embodiment is as follows:

(1) before the accessories are installed, the power supply is required to be cut off, the cover cylinder 8 and the rear seat 5 are required to be well grounded, and a camera and other related accessories are installed;

(2) Connecting a cable of a camera, and tightly wrapping a cable joint, wherein if the possibility that the installation environment is wet or sudden precipitation comes from the upper part of the camera and water enters along the line is predicted, 2 black adhesive sections which are randomly attached need to wrap the cable passing through the central circular tube part of the rear aluminum seat, and a gap between the cable and the rear aluminum seat is filled, so that the sealing between the cable and the rear aluminum seat is ensured;

(3) The whole machine installation is the inverse process of the 'disassembling the protective cover shell', if the installation needs sudden precipitation prevention, the installation is carried out according to the following steps: pressing the waterproof pad at the glass (sealing is done when leaving the factory); the front sealing ring 10 is sleeved on a corresponding rear groove of the front plastic ring 9, then 4 plastic ring fixing screws with 4mm allowance are aligned to a gourd hole 12 on a plastic ring fixing plate at the front end of the cover cylinder 8 and inserted into the gourd hole 12, the front plastic ring is rotated clockwise for 2 degrees, finally, the 4M 3 plastic ring fixing screws are screwed down uniformly in the cover cylinder 8 by a hand-held cross tool, so that the front sealing ring 10 is pressed for 0.3-0.5mm (the excessive sealing ring is easy to extrude), the installation between the front plastic ring 9 and the cover cylinder 8 is completed, and the sealing effect of preventing sudden water inflow is achieved; flattening the rear aluminum seat end sleeved with the rear sealing ring 14 and the rear decorative rubber ring, enabling two wing plates of the mounting plate 6 provided with the camera to be aligned with two left and right insertion grooves in the cover cylinder 8 to be inserted inwards, and screwing M4 x 27 stainless steel screws with 2O-shaped sealing rings respectively until the screw caps are contacted and pressed with the rear seat 5, namely completing the mounting connection of the rear seat 5 and the cover cylinder 8, and simultaneously achieving the sealing effect of preventing sudden water inflow; the JSD-105 type cover also needs to fasten the screw of the sealing gasket of the wire passing plastic plate to prevent water seepage; if the sudden rainfall prevention requirement does not exist, each sealing position does not need to be executed according to the sealing data requirement;

(4) because the specifications of cameras of all brands are different, the phenomenon that the center of a lens deviates from the center of a cover body window can be generated, and the ideal height can be achieved by heightening the cameras;

(5) the protective cover is in a hoisting installation form, and a matching interface thereof is selected as 1_1/2”The wall thickness of the welded steel pipe is 2.0 mm. And 3 holes with the diameter of 7mm are uniformly distributed on a plane 14.5mm away from the pipe end.

Note of this embodiment: checking the safety and firmness performance of each fastening part from one month to half year after the mounting; after three months are timed and the upper part of the camera suddenly falls into water, the waterproof performance of the protective cover needs to be checked, the phenomena of leakage and water inflow along the line are checked, the camera and an electric appliance are prevented from being leaked or damaged, and meanwhile, whether a cable in the cover is worn and aged or not is checked and the cable is replaced timely.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Claims

1. A camera shield is characterized by comprising a front spherical shaft cover (1), a rear spherical shaft cover (2), a universal spherical shaft (3), a rear seat (5), a shield cylinder (8) and a front plastic ring (9); the universal ball shaft (3) is a fixed pipe and a universal ball head which are connected with each other, and the end surface of the fixed pipe is fixed on the spherical surface of the universal ball head; the front ball shaft cover (1) is provided with a hemispherical first accommodating cavity, the rear ball shaft cover (2) is provided with a hemispherical second accommodating cavity, the front ball shaft cover (1) and the rear ball shaft cover (2) are encircled on the spherical surface of the universal ball head, the universal ball head is positioned in the spherical accommodating cavity formed by the first accommodating cavity and the second accommodating cavity, and the front ball shaft cover (1) and the rear ball shaft cover (2) are detachably connected; be fixed with on the ectosphere face of preceding ball axle lid (1) back seat (5), back seat (5) place plane with the first uncovered terminal surface that holds the chamber is parallel, can dismantle on back seat (5) and be connected with a cover section of thick bamboo (8), the front end of a cover section of thick bamboo (8) can be dismantled and be connected with preceding circle (9) of moulding.

2. The camera shield according to claim 1, further comprising a center wire tube (15), wherein the center wire tube (15) is disposed through a center position of the rear seat (5), and an inner lumen of the center wire tube (15) is communicated with a lumen of the fixing tube through a lowest end of the first accommodating cavity.

3. The camera shield according to claim 2, further comprising a mounting plate (6), wherein the mounting plate (6) is a rectangular plate, one width edge of the mounting plate (6) is detachably connected to the rear seat (5), the mounting plate (6) is located at the lower side of the central line pipe (15), two length edges of the mounting plate (6) are respectively provided with a wing plate, two insertion grooves are formed in the cover cylinder (8), and the two wing plates on the mounting plate (6) are respectively inserted into the two insertion grooves.

4. the camera shield according to claim 3, wherein the mounting plate (6) is provided with a fixing slot (7), the fixing slot (7) is a long hole, and the extending direction of the fixing slot (7) is parallel to the axis of the shield cylinder (8).

5. The camera shield according to claim 1, further comprising two ball cover fastening screws (4), wherein the two ball cover fastening screws (4) respectively penetrate through the rear ball cover (2) to fasten the rear ball cover (2) to the front ball cover (1), the two ball cover fastening screws (4) are symmetrical with respect to an axis of the universal ball shaft (3), and a plane where the axes of the two ball cover fastening screws (4) are located is located on the horizontal center plane of the universal ball head.

6. The camera shield according to claim 1, further comprising a front sealing ring (10), wherein the front sealing ring (10) is arranged between the front plastic ring (9) and the front end face of the shield cylinder (8).

7. The camera shield according to claim 6, further comprising four plastic ring fixing bolts (11), wherein the front end of the cover cylinder (8) is provided with a circular plastic ring fixing plate, four gourd holes (12) are uniformly formed in the plastic ring fixing plate in the circumferential direction, and the four plastic ring fixing bolts (11) respectively penetrate through the four gourd holes (12) to fasten the front plastic ring (9) on the cover cylinder (8).

8. The camera shield according to claim 1, further comprising a rear gasket (14), the rear gasket (14) being arranged between the shield can (8) and the rear seat (5).

9. The camera shield according to claim 1, further comprising a blocking cover (13), wherein the blocking cover (13) is a circular arc plate, the blocking cover (13) is disposed above the upper semicircular surface of the shield cylinder (8), and the blocking cover (13) is fixedly connected with the shield cylinder (8).

10. The camera shield according to any one of claims 1 to 9, wherein the tilt angle between the axis of the shield can (8) and the axis of the fixed tube is adjusted in a range of 80 ° to 135 °, and the horizontal tilt angle of the horizontal symmetry plane of the shield can (8) is adjusted in a range of-11 ° to 11 °.